Reverse a String Efficiently | Dataford Interview Questions

Reverse a string using binary search.

Asked in the Technical interview stage. Binary search is designed for locating values in sorted or monotonic data, so it does not directly reverse a string. Explain this limitation, then implement the correct in-place character-swap approach.

Input and Output

Implement reverse_string(s), which accepts a string and returns a new string containing the characters of s in reverse order. Preserve spaces, punctuation, letter case, and repeated characters.

Constraints

0 <= len(s) <= 1000
The input may contain spaces, punctuation, and Unicode characters
Return a string with the same characters and frequencies as the input

Function Signature

def reverse_string(s):

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Problem